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UIScrollView.js
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/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
ccs.ScrollViewDir = {
none: 0,
vertical: 1,
horizontal: 2,
both: 3
};
ccs.ScrollviewEventType = {
scrollToTop: 0,
scrollToBottom: 1,
scrollToLeft: 2,
scrollToRight: 3,
scrolling: 4,
bounceTop: 5,
bounceBottom: 6,
bounceLeft: 7,
bounceRight: 8
};
ccs.AUTOSCROLLMAXSPEED = 1000;
ccs.SCROLLDIR_UP = cc.p(0, 1);
ccs.SCROLLDIR_DOWN = cc.p(0, -1);
ccs.SCROLLDIR_LEFT = cc.p(-1, 0);
ccs.SCROLLDIR_RIGHT = cc.p(1, 0);
/**
* Base class for ccs.UIScrollView
* @class
* @extends ccs.UILayout
*/
ccs.UIScrollView = ccs.UILayout.extend({
_innerContainer: null,
_direction: null,
_touchBeganPoint: null,
_touchMovedPoint: null,
_touchEndedPoint: null,
_touchMovingPoint: null,
_autoScrollDir: null,
_topBoundary: 0,//test
_bottomBoundary: 0,//test
_leftBoundary: 0,
_rightBoundary: 0,
_bounceTopBoundary: 0,
_bounceBottomBoundary: 0,
_bounceLeftBoundary: 0,
_bounceRightBoundary: 0,
_autoScroll: false,
_autoScrollAddUpTime: 0,
_autoScrollOriginalSpeed: 0,
_autoScrollAcceleration: 0,
_isAutoScrollSpeedAttenuated: false,
_needCheckAutoScrollDestination: false,
_autoScrollDestination: null,
_bePressed: false,
_slidTime: 0,
_moveChildPoint: null,
_childFocusCancelOffset: 0,
_leftBounceNeeded: false,
_topBounceNeeded: false,
_rightBounceNeeded: false,
_bottomBounceNeeded: false,
_bounceEnabled: false,
_bouncing: false,
_bounceDir: null,
_bounceOriginalSpeed: 0,
_inertiaScrollEnabled: false,
_scrollViewEventListener: null,
_scrollViewEventSelector: null,
ctor: function () {
ccs.UILayout.prototype.ctor.call(this);
this._innerContainer = null;
this._direction = ccs.ScrollViewDir.none;
this._touchBeganPoint = cc.p(0, 0);
this._touchMovedPoint = cc.p(0, 0);
this._touchEndedPoint = cc.p(0, 0);
this._touchMovingPoint = cc.p(0, 0);
this._autoScrollDir = cc.p(0, 0);
this._topBoundary = 0;//test
this._bottomBoundary = 0;//test
this._leftBoundary = 0;
this._rightBoundary = 0;
this._bounceTopBoundary = 0;
this._bounceBottomBoundary = 0;
this._bounceLeftBoundary = 0;
this._bounceRightBoundary = 0;
this._autoScroll = false;
this._autoScrollAddUpTime = 0;
this._autoScrollOriginalSpeed = 0;
this._autoScrollAcceleration = -1000;
this._isAutoScrollSpeedAttenuated = false;
this._needCheckAutoScrollDestination = false;
this._autoScrollDestination = cc.p(0, 0);
this._bePressed = false;
this._slidTime = 0;
this._moveChildPoint = cc.p(0, 0);
this._childFocusCancelOffset = 5;
this._leftBounceNeeded = false;
this._topBounceNeeded = false;
this._rightBounceNeeded = false;
this._bottomBounceNeeded = false;
this._bounceEnabled = false;
this._bouncing = false;
this._bounceDir = cc.p(0, 0);
this._bounceOriginalSpeed = 0;
this._inertiaScrollEnabled = true;
this._scrollViewEventListener = null;
this._scrollViewEventSelector = null;
},
releaseResoures: function () {
this.setUpdateEnabled(false);
this.removeAllChildren();
this._renderer.removeAllChildren(true);
this._renderer.removeFromParent(true);
ccs.UILayout.prototype.removeChild.call(this, this._innerContainer);
this._children = [];
},
init: function () {
if (ccs.UILayout.prototype.init.call(this)) {
this.setUpdateEnabled(true);
this.setTouchEnabled(true);
this.setClippingEnabled(true);
this._innerContainer.setTouchEnabled(false);
return true;
}
return false;
},
initRenderer: function () {
ccs.UILayout.prototype.initRenderer.call(this);
this._innerContainer = ccs.UILayout.create();
ccs.UILayout.prototype.addChild.call(this, this._innerContainer);
},
onSizeChanged: function () {
ccs.UILayout.prototype.onSizeChanged.call(this);
var locSize = this._size;
this._topBoundary = locSize.height;
this._rightBoundary = locSize.width;
var bounceBoundaryParameterX = locSize.width / 3;
var bounceBoundaryParameterY = locSize.height / 3;
this._bounceTopBoundary = locSize.height - bounceBoundaryParameterY;
this._bounceBottomBoundary = bounceBoundaryParameterY;
this._bounceLeftBoundary = bounceBoundaryParameterX;
this._bounceRightBoundary = this._size.width - bounceBoundaryParameterX;
var innerSize = this._innerContainer.getSize();
var orginInnerSizeWidth = innerSize.width;
var orginInnerSizeHeight = innerSize.height;
var innerSizeWidth = Math.max(orginInnerSizeWidth, locSize.width);
var innerSizeHeight = Math.max(orginInnerSizeHeight, locSize.height);
this._innerContainer.setSize(cc.size(innerSizeWidth, innerSizeHeight));
this._innerContainer.setPosition(cc.p(0, locSize.height - this._innerContainer.getSize().height));
},
setInnerContainerSize: function (size) {
var locSize = this._size;
var innerSizeWidth = locSize.width;
var innerSizeHeight = locSize.height;
var originalInnerSize = this._innerContainer.getSize();
if (size.width < locSize.width) {
cc.log("Inner width <= scrollview width, it will be force sized!");
}
else {
innerSizeWidth = size.width;
}
if (size.height < locSize.height) {
cc.log("Inner height <= scrollview height, it will be force sized!");
}
else {
innerSizeHeight = size.height;
}
this._innerContainer.setSize(cc.size(innerSizeWidth, innerSizeHeight));
switch (this._direction) {
case ccs.ScrollViewDir.vertical:
var newInnerSize = this._innerContainer.getSize();
var offset = originalInnerSize.height - newInnerSize.height;
this.scrollChildren(0, offset);
break;
case ccs.ScrollViewDir.horizontal:
if (this._innerContainer.getRightInParent() <= locSize.width) {
var newInnerSize = this._innerContainer.getSize();
var offset = originalInnerSize.width - newInnerSize.width;
this.scrollChildren(offset, 0);
}
break;
case ccs.ScrollViewDir.both:
var newInnerSize = this._innerContainer.getSize();
var offsetY = originalInnerSize.height - newInnerSize.height;
var offsetX = 0;
if (this._innerContainer.getRightInParent() <= locSize.width) {
offsetX = originalInnerSize.width - newInnerSize.width;
}
this.scrollChildren(offsetX, offsetY);
break;
default:
break;
}
},
getInnerContainerSize: function () {
return this._innerContainer.getSize();
},
/**
* Add widget
* @param {ccs.UIWidget} widget
* @returns {boolean}
*/
addChild: function (widget) {
return this._innerContainer.addChild(widget);
},
removeAllChildren: function () {
this._innerContainer.removeAllChildren();
},
/**
* remove widget child override
* @param {ccs.UIWidget} child
* @returns {boolean}
*/
removeChild: function (child) {
return this._innerContainer.removeChild(child);
},
getChildren: function () {
return this._innerContainer.getChildren();
},
moveChildren: function (offsetX, offsetY) {
var pos = this._innerContainer.getPosition();
this._moveChildPoint.x = pos.x + offsetX;
this._moveChildPoint.y = pos.y + offsetY;
this._innerContainer.setPosition(this._moveChildPoint);
},
autoScrollChildren: function (dt) {
var lastTime = this._autoScrollAddUpTime;
this._autoScrollAddUpTime += dt;
if (this._isAutoScrollSpeedAttenuated) {
var nowSpeed = this._autoScrollOriginalSpeed + this._autoScrollAcceleration * this._autoScrollAddUpTime;
if (nowSpeed <= 0) {
this.stopAutoScrollChildren();
this.checkNeedBounce();
} else {
var timeParam = lastTime * 2 + dt;
var offset = (this._autoScrollOriginalSpeed + this._autoScrollAcceleration * timeParam * 0.5) * dt;
var offsetX = offset * this._autoScrollDir.x;
var offsetY = offset * this._autoScrollDir.y;
if (!this.scrollChildren(offsetX, offsetY)) {
this.stopAutoScrollChildren();
this.checkNeedBounce();
}
}
}
else {
if (this._needCheckAutoScrollDestination) {
var xOffset = this._autoScrollDir.x * dt * this._autoScrollOriginalSpeed;
var yOffset = this._autoScrollDir.y * dt * this._autoScrollOriginalSpeed;
var notDone = this.checkCustomScrollDestination(xOffset, yOffset);
var scrollCheck = this.scrollChildren(xOffset, yOffset);
if (!notDone || !scrollCheck) {
this.stopAutoScrollChildren();
this.checkNeedBounce();
}
}
else {
if (!this.scrollChildren(this._autoScrollDir.x * dt * this._autoScrollOriginalSpeed, this._autoScrollDir.y * dt * this._autoScrollOriginalSpeed)) {
this.stopAutoScrollChildren();
this.checkNeedBounce();
}
}
}
},
bounceChildren: function (dt) {
var locSpeed = this._bounceOriginalSpeed;
var locBounceDir = this._bounceDir;
if (locSpeed <= 0.0) {
this.stopBounceChildren();
}
if (!this.bounceScrollChildren(locBounceDir.x * dt * locSpeed, locBounceDir.y * dt * locSpeed)) {
this.stopBounceChildren();
}
},
checkNeedBounce: function () {
if (!this._bounceEnabled) {
return false;
}
this.checkBounceBoundary();
if (this._topBounceNeeded || this._bottomBounceNeeded || this._leftBounceNeeded || this._rightBounceNeeded) {
if (this._topBounceNeeded && this._leftBounceNeeded) {
var scrollVector = cc.pSub(cc.p(0.0, this._size.height), cc.p(this._innerContainer.getLeftInParent(), this._innerContainer.getTopInParent()));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
else if (this._topBounceNeeded && this._rightBounceNeeded) {
var scrollVector = cc.pSub(cc.p(this._size.width, this._size.height), cc.p(this._innerContainer.getRightInParent(), this._innerContainer.getTopInParent()));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
else if (this._bottomBounceNeeded && this._leftBounceNeeded) {
var scrollVector = cc.pSub(cc.p(0, 0), cc.p(this._innerContainer.getLeftInParent(), this._innerContainer.getBottomInParent()));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
else if (this._bottomBounceNeeded && this._rightBounceNeeded) {
var scrollVector = cc.pSub(cc.p(this._size.width, 0.0), cc.p(this._innerContainer.getRightInParent(), this._innerContainer.getBottomInParent()));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
else if (this._topBounceNeeded) {
var scrollVector = cc.pSub(cc.p(0, this._size.height), cc.p(0.0, this._innerContainer.getTopInParent()));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
else if (this._bottomBounceNeeded) {
var scrollVector = cc.pSub(cc.p(0, 0), cc.p(0.0, this._innerContainer.getBottomInParent()));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
else if (this._leftBounceNeeded) {
var scrollVector = cc.pSub(cc.p(0, 0), cc.p(this._innerContainer.getLeftInParent(), 0.0));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
else if (this._rightBounceNeeded) {
var scrollVector = cc.pSub(cc.p(this._size.width, 0), cc.p(this._innerContainer.getRightInParent(), 0.0));
var orSpeed = cc.pLength(scrollVector) / 0.2;
this._bounceDir = cc.pNormalize(scrollVector);
this.startBounceChildren(orSpeed);
}
return true;
}
return false;
},
checkBounceBoundary: function () {
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos > this._bottomBoundary) {
this.scrollToBottomEvent();
this._bottomBounceNeeded = true;
}
else {
this._bottomBounceNeeded = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos < this._topBoundary) {
this.scrollToTopEvent();
this._topBounceNeeded = true;
}
else {
this._topBounceNeeded = false;
}
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos < this._rightBoundary) {
this.scrollToRightEvent();
this._rightBounceNeeded = true;
}
else {
this._rightBounceNeeded = false;
}
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos > this._leftBoundary) {
this.scrollToLeftEvent();
this._leftBounceNeeded = true;
}
else {
this._leftBounceNeeded = false;
}
},
startBounceChildren: function (v) {
this._bounceOriginalSpeed = v;
this._bouncing = true;
},
stopBounceChildren: function () {
this._bouncing = false;
this._bounceOriginalSpeed = 0.0;
this._leftBounceNeeded = false;
this._rightBounceNeeded = false;
this._topBounceNeeded = false;
this._bottomBounceNeeded = false;
},
startAutoScrollChildrenWithOriginalSpeed: function (dir, v, attenuated, acceleration) {
this.stopAutoScrollChildren();
this._autoScrollDir = dir;
this._isAutoScrollSpeedAttenuated = attenuated;
this._autoScrollOriginalSpeed = v;
this._autoScroll = true;
this._autoScrollAcceleration = acceleration;
},
startAutoScrollChildrenWithDestination: function (des, time, attenuated) {
this._needCheckAutoScrollDestination = false;
this._autoScrollDestination = des;
var dis = cc.pSub(des, this._innerContainer.getPosition());
var dir = cc.pNormalize(dis);
var orSpeed = 0.0;
var acceleration = -1000.0;
var disLength = cc.pLength(dis);
if (attenuated) {
acceleration = -(2 * disLength) / (time * time);
orSpeed = 2 * disLength / time;
}
else {
this._needCheckAutoScrollDestination = true;
orSpeed = disLength / time;
}
this.startAutoScrollChildrenWithOriginalSpeed(dir, orSpeed, attenuated, acceleration);
},
jumpToDestination: function (des) {
var finalOffsetX = des.x;
var finalOffsetY = des.y;
switch (this._direction) {
case cc.ScrollViewDir.vertical:
if (des.y <= 0) {
finalOffsetY = Math.max(des.y, this._size.height - this._innerContainer.getSize().height);
}
break;
case cc.ScrollViewDir.horizontal:
if (des.x <= 0) {
finalOffsetX = Math.max(des.x, this._size.width - this._innerContainer.getSize().width);
}
break;
case cc.ScrollViewDir.both:
if (des.y <= 0) {
finalOffsetY = Math.max(des.y, this._size.height - this._innerContainer.getSize().height);
}
if (des.x <= 0) {
finalOffsetX = Math.max(des.x, this._size.width - this._innerContainer.getSize().width);
}
break;
default:
break;
}
this._innerContainer.setPosition(cc.p(finalOffsetX, finalOffsetY));
},
stopAutoScrollChildren: function () {
this._autoScroll = false;
this._autoScrollOriginalSpeed = 0;
this._autoScrollAddUpTime = 0;
},
bounceScrollChildren: function (touchOffsetX, touchOffsetY) {
var scrollEnabled = true;
if (touchOffsetX > 0.0 && touchOffsetY > 0.0) //first quadrant //bounce to top-right
{
var realOffsetX = touchOffsetX;
var realOffsetY = touchOffsetY;
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + realOffsetX >= this._rightBoundary) {
realOffsetX = this._rightBoundary - icRightPos;
this.bounceRightEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY >= this._topBoundary) {
realOffsetY = this._topBoundary - icTopPos;
this.bounceTopEvent();
scrollEnabled = false;
}
this.moveChildren(realOffsetX, realOffsetY);
}
else if (touchOffsetX < 0.0 && touchOffsetY > 0.0) //second quadrant //bounce to top-left
{
var realOffsetX = touchOffsetX;
var realOffsetY = touchOffsetY;
var icLefrPos = this._innerContainer.getLeftInParent();
if (icLefrPos + realOffsetX <= this._leftBoundary) {
realOffsetX = this._leftBoundary - icLefrPos;
this.bounceLeftEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY >= this._topBoundary) {
realOffsetY = this._topBoundary - icTopPos;
this.bounceTopEvent();
scrollEnabled = false;
}
this.moveChildren(realOffsetX, realOffsetY);
}
else if (touchOffsetX < 0.0 && touchOffsetY < 0.0) //third quadrant //bounce to bottom-left
{
var realOffsetX = touchOffsetX;
var realOffsetY = touchOffsetY;
var icLefrPos = this._innerContainer.getLeftInParent();
if (icLefrPos + realOffsetX <= this._leftBoundary) {
realOffsetX = this._leftBoundary - icLefrPos;
this.bounceLeftEvent();
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY <= this._bottomBoundary) {
realOffsetY = this._bottomBoundary - icBottomPos;
this.bounceBottomEvent();
scrollEnabled = false;
}
this.moveChildren(realOffsetX, realOffsetY);
}
else if (touchOffsetX > 0.0 && touchOffsetY < 0.0) //forth quadrant //bounce to bottom-right
{
var realOffsetX = touchOffsetX;
var realOffsetY = touchOffsetY;
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + realOffsetX >= this._rightBoundary) {
realOffsetX = this._rightBoundary - icRightPos;
this.bounceRightEvent();
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY <= this._bottomBoundary) {
realOffsetY = this._bottomBoundary - icBottomPos;
this.bounceBottomEvent();
scrollEnabled = false;
}
this.moveChildren(realOffsetX, realOffsetY);
}
else if (touchOffsetX == 0.0 && touchOffsetY > 0.0) // bounce to top
{
var realOffsetY = touchOffsetY;
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY >= this._topBoundary) {
realOffsetY = this._topBoundary - icTopPos;
this.bounceTopEvent();
scrollEnabled = false;
}
this.moveChildren(0.0, realOffsetY);
}
else if (touchOffsetX == 0.0 && touchOffsetY < 0.0) //bounce to bottom
{
var realOffsetY = touchOffsetY;
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY <= this._bottomBoundary) {
realOffsetY = this._bottomBoundary - icBottomPos;
this.bounceBottomEvent();
scrollEnabled = false;
}
this.moveChildren(0.0, realOffsetY);
}
else if (touchOffsetX > 0.0 && touchOffsetY == 0.0) //bounce to right
{
var realOffsetX = touchOffsetX;
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + realOffsetX >= this._rightBoundary) {
realOffsetX = this._rightBoundary - icRightPos;
this.bounceRightEvent();
scrollEnabled = false;
}
this.moveChildren(realOffsetX, 0.0);
}
else if (touchOffsetX < 0.0 && touchOffsetY == 0.0) //bounce to left
{
var realOffsetX = touchOffsetX;
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + realOffsetX <= this._leftBoundary) {
realOffsetX = this._leftBoundary - icLeftPos;
this.bounceLeftEvent();
scrollEnabled = false;
}
this.moveChildren(realOffsetX, 0.0);
}
return scrollEnabled;
},
checkCustomScrollDestination: function (touchOffsetX, touchOffsetY) {
var scrollEnabled = true;
switch (this._direction) {
case ccs.ScrollViewDir.vertical: // vertical
if (this._autoScrollDir.y > 0) {
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icBottomPos;
scrollEnabled = false;
}
}
else {
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY <= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icBottomPos;
scrollEnabled = false;
}
}
break;
case ccs.ScrollViewDir.horizontal: // horizontal
if (this._autoScrollDir.x > 0) {
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icLeftPos;
scrollEnabled = false;
}
}
else {
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX <= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icLeftPos;
scrollEnabled = false;
}
}
break;
case ccs.ScrollViewDir.both:
if (touchOffsetX > 0.0 && touchOffsetY > 0.0) // up right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icLeftPos;
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icBottomPos;
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY > 0.0) // up left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icRightPos;
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icBottomPos;
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY < 0.0) // down left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icRightPos;
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icTopPos;
scrollEnabled = false;
}
}
else if (touchOffsetX > 0.0 && touchOffsetY < 0.0) // down right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icLeftPos;
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icTopPos;
scrollEnabled = false;
}
}
else if (touchOffsetX == 0.0 && touchOffsetY > 0.0) // up
{
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icBottomPos;
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY == 0.0) // left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icRightPos;
scrollEnabled = false;
}
}
else if (touchOffsetX == 0.0 && touchOffsetY < 0.0) // down
{
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._autoScrollDestination.y) {
touchOffsetY = this._autoScrollDestination.y - icTopPos;
scrollEnabled = false;
}
}
else if (touchOffsetX > 0.0 && touchOffsetY == 0.0) // right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._autoScrollDestination.x) {
touchOffsetX = this._autoScrollDestination.x - icLeftPos;
scrollEnabled = false;
}
}
break;
default:
break;
}
return scrollEnabled;
},
getCurAutoScrollDistance: function (dt) {
this._autoScrollOriginalSpeed -= this._autoScrollAcceleration * dt;
return this._autoScrollOriginalSpeed * dt;
},
scrollChildren: function (touchOffsetX, touchOffsetY) {
var scrollEnabled = true;
this.scrollingEvent();
switch (this._direction) {
case ccs.ScrollViewDir.vertical: // vertical
var realOffset = touchOffsetY;
if (this._bounceEnabled) {
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bounceBottomBoundary) {
realOffset = this._bounceBottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._bounceTopBoundary) {
realOffset = this._bounceTopBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
else {
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bottomBoundary) {
realOffset = this._bottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._topBoundary) {
realOffset = this._topBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
this.moveChildren(0.0, realOffset);
break;
case ccs.ScrollViewDir.horizontal: // horizontal
var realOffset = touchOffsetX;
if (this._bounceEnabled) {
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._bounceRightBoundary) {
realOffset = this._bounceRightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._bounceLeftBoundary) {
realOffset = this._bounceLeftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}
}
else {
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._rightBoundary) {
realOffset = this._rightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._leftBoundary) {
realOffset = this._leftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}
}
this.moveChildren(realOffset, 0.0);
break;
case ccs.ScrollViewDir.both:
var realOffsetX = touchOffsetX;
var realOffsetY = touchOffsetY;
if (this._bounceEnabled) {
if (touchOffsetX > 0.0 && touchOffsetY > 0.0) // up right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._bounceLeftBoundary) {
realOffsetX = this._bounceLeftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bounceBottomBoundary) {
realOffsetY = this._bounceBottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY > 0.0) // up left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._bounceRightBoundary) {
realOffsetX = this._bounceRightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bounceBottomBoundary) {
realOffsetY = this._bounceBottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY < 0.0) // down left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._bounceRightBoundary) {
realOffsetX = this._bounceRightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._bounceTopBoundary) {
realOffsetY = this._bounceTopBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX > 0.0 && touchOffsetY < 0.0) // down right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._bounceLeftBoundary) {
realOffsetX = this._bounceLeftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._bounceTopBoundary) {
realOffsetY = this._bounceTopBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX == 0.0 && touchOffsetY > 0.0) // up
{
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bounceBottomBoundary) {
realOffsetY = this._bounceBottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY == 0.0) // left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._bounceRightBoundary) {
realOffsetX = this._bounceRightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX == 0.0 && touchOffsetY < 0.0) // down
{
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._bounceTopBoundary) {
realOffsetY = this._bounceTopBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX > 0.0 && touchOffsetY == 0.0) // right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._bounceLeftBoundary) {
realOffsetX = this._bounceLeftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}
}
}
else {
if (touchOffsetX > 0.0 && touchOffsetY > 0.0) // up right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._leftBoundary) {
realOffsetX = this._leftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bottomBoundary) {
realOffsetY = this._bottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY > 0.0) // up left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._rightBoundary) {
realOffsetX = this._rightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bottomBoundary) {
realOffsetY = this._bottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX < 0 && touchOffsetY < 0) // down left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._rightBoundary) {
realOffsetX = this._rightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._topBoundary) {
realOffsetY = this._topBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX > 0 && touchOffsetY < 0) // down right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._leftBoundary) {
realOffsetX = this._leftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._topBoundary) {
realOffsetY = this._topBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX == 0.0 && touchOffsetY > 0.0) // up
{
var icBottomPos = this._innerContainer.getBottomInParent();
if (icBottomPos + touchOffsetY >= this._bottomBoundary) {
realOffsetY = this._bottomBoundary - icBottomPos;
this.scrollToBottomEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX < 0.0 && touchOffsetY == 0.0) // left
{
var icRightPos = this._innerContainer.getRightInParent();
if (icRightPos + touchOffsetX <= this._rightBoundary) {
realOffsetX = this._rightBoundary - icRightPos;
this.scrollToRightEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX == 0.0 && touchOffsetY < 0) // down
{
var icTopPos = this._innerContainer.getTopInParent();
if (icTopPos + touchOffsetY <= this._topBoundary) {
realOffsetY = this._topBoundary - icTopPos;
this.scrollToTopEvent();
scrollEnabled = false;
}
}
else if (touchOffsetX > 0 && touchOffsetY == 0) // right
{
var icLeftPos = this._innerContainer.getLeftInParent();
if (icLeftPos + touchOffsetX >= this._leftBoundary) {
realOffsetX = this._leftBoundary - icLeftPos;
this.scrollToLeftEvent();
scrollEnabled = false;
}